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Re: Buffer overflow prevention

From: Crispin Cowan (crispinimmunix.com)
Date: Wed Aug 13 2003 - 18:33:43 CDT


Patrick Dolan wrote:

>There is a flag for the Gnu C/C++ compilers, -fstack-protector, that will
>implement ProPolice stack protection. It should prevent stack smashing
>techniques.
>
That is not actually in the standard GCC; it is in a forked GCC that
OpenBSD chooses to ship.

We (Immunix) are in the process of trying to make StackGuard (the
original) meet all of the criteria required for acceptance into GCC. At
the GCC Summit <http://www.gccsummit.org/2003/> in May, we presented a
StackGuard talk
<http://www.gccsummit.org/2003/view_abstract.php?talk=31> on that topic.

Crispin

--
Crispin Cowan, Ph.D. http://immunix.com/~crispin/
Chief Scientist, Immunix http://immunix.com
            http://www.immunix.com/shop/